Stick Your Severed Spine Back Together with a New Biochemical Gel

Severed spines may not mean paralysis for much longer. Inject a special gel into mice with severed spinal cords and six weeks later the mice are back on their feet. It's a pretty neat trick, one that scientists at Northwestern accomplish by impregnating the gel with biochemical signals that hinder the growth of scar… » 4/04/08 1:20pm 4/04/08 1:20pm